Improving the security of the library information system by applying standard ISO 27001

Sa？etak This article will describe the items that need to be fulfilled in order to raise the level of security according to the ISO 27001 standard. Additionally, layers are described which need to be considered when it comes to achieving maximum protection of the system. Based on ISO 27001 and ICT (Information and Communications Technologies) laws, the document “Information and Communications Technologies security rule book of the National Library of Serbia” was adopted